Gas-burner.



T. H. MINTIBR L H. J. JENNINGS.-

GAS BURNER.

APPLICATION FILED FEB. 25, 1909. A 951 ,828. Patented Mar. 15, 1910.

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GAS BURNER.

APPLICATION FILED 11:12.25, 1909.

Patented Manl, 1910.

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THOMAS H. MINTIER AND HARRY J. JENNINGS, OF TEXARKANA, ARKANSAS,ASSIGNORS TO HARRY R. SEGNAR, OF TEXARKANA, TEXAS.

GAS-BURNER.

To all whom it may concern:

Be it known that we, THOMAS H. MIN- 'rrnn and HARRY J. JnNNrNGs,citizens of the United States, residing at Texarkana, in the county ofMiller and State of Arkansas, have invented certain new and usefullmprovements in Gras-Burners, of which the following is a specification.

This invention relates to gaseous fuel feeders for furnaces of that typein which gas and air are mixed together and fed to a suitable point forburning.

The principal object of the invention is to provide an improved burnerconstruction of this type which may be readily adjusted to obtain theproper mixture of gas and air.

A secondary object of the invention is to provide a feeder constructionwhich will be simple and economical, efficient in operation and one inwhich the several component parts may be readily assembled ordisassembled as occasion may necessitate.

With the foregoing and other objects in view the invention consists inthe novel features of construction, combination and arrangement of partsillustrated in the accompanying drawings and particularly pointed out inthe appended claims.

In the accompanying drawings, Figure 1 is a side elevation of a fuelfeeder embodying our improvements. Fig. 2 is a central longitudinalsection of Fig. 1. Fig. 3 is a similar view with the casing forming themixing chamber in another position, and Fig. 4 is a vertical transversesection taken on the plane indicated by the dotted lines 4 4 of Fig. 2,looking in the direction indicated by the arrows.

In the accompanying drawings which are for illustrative purposes onlyand are therefore not drawn to scale, the numeral 1 indicates a feedpipe for feeding the gas to the mixing chamber 2. The mixing chamber isformed by the outwardly flared body 3 of an adjustable section or casing4, provided at its inner end with a tubular longitudinal extension 5.vSaid extension 5 fits in the outer end of a discharge tube 6, the innercontracted end 7 of which extends through the wall 8 into the combustionchamber 9 of the steam boiler furnace. A cap 10, provided with aplurality of horizontal openings 11, is screwed on the discharge end ofthe feed tube 1. A. cover plate 12, provided Specication of LettersPatent.

Application filed February 25, 1909.

' ported upon the feed tube,

Seria] No. 479,979.

with a plurality of apertures 13 to correspond with the apertures 11 ofthe cap 10, is rotatably mounted on the outer face of the latter by apivot bolt 14, extending centrally through the cover plate and cap, andheld in position by a nut 15. The cover plate is provided with alaterally disposed operating handle 1G, by means of which it may beturned to bring the openings thereof, into or out of registration withthe openings 11 of the cap and thus regulate the discharge of the gasinto the mixing chamber 2. Vhen the gas passes into the mixing chamberit comes in contact with the inner wall of the body 3, which forms thesame and air is drawn or sucked thereby into the mixing chamber in whichit is combined with the gas to form the fuel which subsequentl 1 passesthrough the discharge tube 6 into the combustion chamber 9 of thefurnace. The outer end of the casing 4` is slidably supby means of aring or band 17 which encircles said tube and is connected with the body3 of the casing by obliquely disposed brace bars 18, connected atopposite ends with the ring and body by screws 19, or other-equivalentmeans.

To increase the quantity of air, combined with a certain quantity ofgas, the casing 4 is moved inwardly by means of the band 17, the extremeinward position of said casing being indicated in Fig. 3, in whichposition the greatest quantity of air is drawn into the mixing chamberto be combined with the gas. The casing 4 is held at the properadjustment by retention screws 20 screwing through the outer end of thedischarge tube 6 against the tubular extension ,5 of said casing.

It is to be understood of course that while we have illustrated our fuelfeeder in connection with a steam boiler furnace, it may be used in anyconnection where it is desirable to feed a gaseous fuel to a suitablepoint for burning.

From the foregoing description, taken in connection with the drawings,it is thought that the construction and operation of our invention willbe readily understood without requiring a more extended explanation.

Various changes in the form, proportion and minor details ofconstruction may be resorted to without departing from the prin-Patented Mar. 1.5, 1910.

ciple or sacrificing any of the advantages of the invention as definedin the appended claims.

Having described our invention, what We claim as newv and desire tosecui'e by Letters Patent, is:

1. In a device of the class described, a feed tube for the gas, alongitudinally adjustable casing having an outwardly flared body forminga mixing chamber for the air and gas, and a longitudinal extension, adischarge tube to receive the extension of the casing, means forslidably supporting the body of the casing upon the feed tube, means forholding the casing at the desired adjustment and means arranged at thedischarge end of the feed tube for regulating the admission of the gasesinto the mixing chamber.

2. In a fuel burner of the class described, a feed tube for the gas, atubular longitudinally adjustable casing forming a mixing chamber,communicating With the feed tube, means for slidably supporting theouter end of said casing upon the feed tube, a cap provided Wit-h aplurality of horizontal openings closing the discharge end of the feedtube and a cover plate provided with a series of openings to correspondWith those of the cap and with a laterally disposed operating bandencircling the feed tube and a pair of 40 obliquely disposed brace barsconnected at opposite ends with said band and the outer end of saidcasing, respectively.

In testimony whereof We atlix our signatures, in presence of tivoWitnesses.

THOMAS I-I. MINTIER. HARRY J. .IENNINGS Witnesses:

A. B. LITTLE, CHAS. W. JENNINGs.

